Abstract
Objective To investigate the clinical value of CEA, CA19-9, CA242 and CA72-4 four serum tumor markers in colorectal cancer diagnosis, surgery and postoperative evaluation of their. Methods Immunohistochemical assay was used in 80 patients with colorectal cancer and 50 cases of colorectal benign diseases to detect the CEA, CA19-9, CA242 and CA72-4 and other four serum tumor markers, with 2-year follow- up. Results Four kinds of serum tumor markers CEA, CA19-9, CA242 and CA72-4 levels in colorectal cancer group were significantly higher than the control group ( P ＜ 0.05 ) ; levels of the four serum tumor markers in patients in Dukes stages C, D were significantly higher than those in Dukes stages A, B;four serum tumor markers were significantly increased in patients with recurrence of metastasis. Conclusion Combined detection of serum CEA, CA19-9, CA242 and CA72-4 has clinical value in diagnosis, surgical treatment evaluation and monitoring of metastasis and recurrence after surgery of colorectal cancer can improve detection sensitivity and specificity. Key words: Serum tumor markers; Colorectal cancer; Joint detection
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